From the Everglades of Florida to the deserts of Southern Arizona, Dr. Mike's latest vacation tests his endurance in more ways than one. He goes stormwater drain diving and takes a shot in the head with a deadly toxin.

Mexico is virologist Mike Leahy's dream destination. This exotic North American country is home to a host of tiny terrors whose size defies their capacity to damage your holiday plans - and your insides - in an instant.

From the dense tropical rain forest to the natural wonder of the Great Barrier Reef, Queensland Australia is an idyllic travel destination. It's also home to beautiful yet deadly creatures. From a nettle on steroids to a killer bird, globe-trotting virologist Dr. Mike Leahy meets some of the smallest yet most lethal locals in this sun lover's paradise.

Dr Mike Leahy travels to Borneo where he learns the hard way that everything is out to get you, whether trekking through the forest, climbing a mountain, exploring a 65 million year old cave system or cruising through the mangrove swamp.

Join virologist Dr Mike as he braves the Australian Outback and takes on some of its most potent wildlife, including an eight-legged murderess.

Virologist Mike Leahy heads to Vietnam where he examines the potentially harmful creatures, cities, jungles and paddy fields.

Join Dr Mike as he braves India's wildlife, confronting rare bloodthirsty monkeys and investigating bugs which hitch rides in people's stomachs.

Virologist Mike Leahy takes a trip to Brazil, to explore the thousands of possible health hazards. Dr. Mike puts his body on the line as he examines fire ants and invisible worms, plus the legendary candiru fish.